Anastasia G Zolotareva, Ivan F Gorlov, Marina I Slozhenkina, Alexander A Mosolov, Olga A Knyazhechenko

Animal Husbandry and Fodder Production. 2023. Vol. 106, no 4. Р. 216-231.

doi:10.33284/2658-3135-106-4-216

Original article

A study of the effectiveness of protein-prebiotic feed additive on the growth

and development of rabbits

 

Anastasia G Zolotareva1,6, Ivan F Gorlov2,7, Marina I Slozhenkina3,8, Alexander A Mosolov4,

Olga A Knyazhechenko5

1,2,3,4,5Volga Region Research Institute for the Production and Processing of Meat and Dairy Products,

Volgograd, Russia

6,7,8Volgograd State Technical University, Volgograd, Russia

1,6genzol5@mail.ru, https://orcid.org/0000-0002-3503-0811

2,7niimmp@mail.ru, https://orcid.org/0000-0002-8683-8159

3,8 niimmp@mail.ru, https://orcid.org/0000-0001-9542-5893

4 niimmp@mail.ru, https://orcid.org/0000-0002-4927-7065

5 knyazhechenko71@gmail.com, https://orcid.org/0000-0003-1508-2179

 

Abstract. Today rabbit breeding represents a promising direction in the development of the livestock industry in Russia, due to its high profitability and efficiency. One of the key areas of research in this area is the search for effective feed additives that can replace the use of antibiotics and ensure high standards of safety and quality in the production of meat products. The object of research was hybrid male rabbits of the Californian breed, considered a breed of meat direction of productivity. The research was carried out on the basis of a personal subsidiary farm of A.N. Mosolova in the Volgograd region with a total livestock of more than 300 heads. Six groups of 45-day-old male rabbits of the same age were formed, with 15 heads in each group to conduct the experiment. Rabbits from all experimental groups, in addition to the basic diet (BD), received the Chlorelact feed additive in various doses three times a day. After that, the effect of this additive on the rabbits' organism was evaluated in comparison with the prebiotic feed additive "LactuVet-1" and a suspension of chlorella algae. The analysis of the results of the live weight gain of rabbits during the reconnaissance experiment confirmed the positive effect of various doses of feed additives on productivity. All experimental groups of rabbits receiving various supplements to the basic diet showed a higher growth rate within 75 days and significantly exceeded the weight of rabbits in the control group (P≤0.001). The experimental group that consumed the new Chlorelact supplement at a dose of 0.05 l/kg was particularly distinguished, demonstrating the best results in weight gain and feed conversion (P≤0.001). The analysis of control weighting of animals showed that the additives "Chlorelact" and "LactuVet-1" contributed to an increase in the live weight of rabbits throughout the entire fattening period. Hematological studies have proved that the complex of vitamins, trace elements and biologically active substances in the composition of "Chlorelact" and "LactuVet-1" has a direct effect on the processes of hematopoiesis and functional characteristics of blood. Rabbits consuming Chlorelact outperformed analogues of the control group in terms of erythrocyte levels by 9.19 % (P≤0.01), and the experimental group with LactuVet-1 – by 6.52 % (P≤0.01) at the end of the experiment. The effect of the Chlorelact supplement was also manifested in the improvement of the immune system, where the animals of the control group were inferior in the number of leukocytes to rabbits of the experimental group with Chlorelact by 6.48 % (P≤0.05) and with LactuVet-1 by 5.98 % (P≤0.05). Rabbits from the experimental group consuming Chlorelact with a high iron content in the chlorella algae suspension, showed the highest hemoglobin levels, exceeding the blood levels of the control group by 19.08 % (P≤0.001), and the group with LactuVet-1 – by 5.39 % (P≤0.001). Thus, in the course of scientific and production work, the effectiveness of the protein-prebiotic feed additive "Chlorelact" was confirmed, contributing to the acceleration of physiological processes, increasing productivity and improving the overall resistance of the rabbit organism.

Keywords: rabbit breeding, feeding, nutritional value of feed, lactulose, chlorella, protein-and-prebiotic preparations, rabbit productivity, hematological indicators

Acknowledgments: the work was supported by the Russian Science Foundation, Project No. 22-16-00041.

For citation: Zolotareva AG, Gorlov IF, Slozhenkina MI, Mosolov AA, Knyazhechenko OA. A study of the effectiveness of protein-probiotic feed additives on the growth and development of rabbits. Animal Husbandry and Fodder Production. 2023;106(4):216-231. (In Russ.). https://doi.org/10.33284/2658-3135-216

 

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Information about the authors:

Anastasia G Zolotareva, Senior Lecturer of the Department of "Food Production Technology", Volgograd State Technical University, Volgograd region, Volgograd, V.I. Lenin Ave., 28, 400005; applicant, Volga Region Research Institute for the Production and Processing of Meat and Dairy Products, 6 street named after Marshal Rokossovsky, Volgograd, Volgograd region, Russia, 400066, tel.: 8-904-409-10-69.

Ivan F Gorlov, Dr. Sci. (Agriculture), Professor, Academician of the Russian Academy of Sciences, Chief Researcher, Volga Region Research Institute for the Production and Processing of Meat and Dairy Products, 6 street named after Marshal Rokossovsky, Volgograd, Volgograd region, Russia, 400066; Head of the Department "Technology of Food Production", Volgograd State Technical University, Volgograd region, Volgograd, V.I. Lenin Ave., 28, 400005, tel.: 8 (844) 239-10-48.

Marina I Slozhenkina, Dr. Sci. (Biology), Professor, Corresponding Member of the Russian Academy of Sciences, Director, Volga Region Research Institute for the Production and Processing of Meat and Dairy Products, 6 street named after Marshal Rokossovsky, Volgograd, Volgograd region, Russia, 400066; Professor of the Department of Food Production Technology, Volgograd State Technical University, Volgograd region, Volgograd, V.I. Lenin Ave., 28, 400005, tel.: 8 (844) 239-10-48.

Alexander A Mosolov, Dr. Sci. (Biology), Chief Researcher, Volga Region Research Institute for the Production and Processing of Meat and Dairy Products, 6 street named after Marshal Rokossovsky, Volgograd, Volgograd region, Russia, 400066, tel.: 8 (844) 239-10-48.

Olga A Knyazhechenko, Cand. Sci. (Biology), Junior Researcher, Volga Region Research Institute for the Production and Processing of Meat and Dairy Products, 6 street named after Marshal Rokossovsky, Volgograd, Volgograd region, Russia, 400066, tel.: 8 (844) 239-10-48.

The article was submitted 27.11.2023; approved after reviewing 06.12.2023; accepted for publication 11.12.2023.

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